(:*******************************************************:)
(: Test: K-FilterExpr-88                                 :)
(: Written by: Frans Englich                             :)
(: Date: 2007-11-22T11:31:20+01:00                       :)
(: Purpose: A truth predicate that never match.          :)
(:*******************************************************:)
empty(remove((1, 2, 3, current-time()), 4)[false()])